Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."

If an artifact or creature entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Room abilities of dungeons you own trigger an additional time.

Defender (This creature can't attack.) You have hexproof. (You can't be the target of spells or abilities your opponents control.) Prevent all noncombat damage that would be dealt to other creatures you control.

When this creature enters, venture into the dungeon. (Enter the first room or advance to the next room.) Displacement — {3}{U}: Return this creature to its owner's hand.

Defender {4}{U}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

Draw three cards, then put two cards from your hand on top of your library in any order.

Whenever this creature deals combat damage to a player, draw that many cards.

Vigilance When this creature enters, you take the initiative.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) At the beginning of your end step, if you have the initiative, draw a card. Draw another card if you've completed a dungeon. Choose a Background (You can have a Background as a second commander.)

Look at the top three cards of your library, then put them back in any order. You may shuffle. Draw a card.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Whenever a player draws their second card during their turn, you draw a card. Whenever a player casts their second spell during their turn, you create a 2/2 white Knight creature token.

This creature can't be blocked. At the beginning of combat on your turn, you may have this creature become a copy of another target creature until end of turn, except it's 1/4 and has "This creature can't be blocked."

Enchant creature Enchanted creature has flying and "Whenever this creature deals combat damage to a player, venture into the dungeon." (Enter the first room or advance to the next room.)

Creatures you control can't be blocked except by legendary creatures. Whenever one or more creatures you control deal combat damage to a player, venture into the dungeon. (Enter the first room or advance to the next room.)

Creatures you control with power or toughness 1 or less can't be blocked.

{T}: Add {C}. {3}, {T}: Target creature with power 3 or less can't be blocked this turn.

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {W}{U}.

{T}: Add one mana of any color in your commander's color identity.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

This land enters tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.

({T}: Add {U}.)

({T}: Add {W} or {U}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {C}. {T}: Add {W}. Activate only if you control an Island. {T}: Add {U}. Activate only if you control a Plains.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

({T}: Add {W} or {U}.) This land enters tapped unless you control two or more basic lands.

You have no maximum hand size. {T}: Add {C}.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

This land enters tapped unless you have two or more opponents. {T}: Add {W} or {U}.

{1}, {T}: Add {W}{U}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {W} or {U}.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {W} or {U}.

Creatures you control have vigilance. Each creature you control can block an additional creature each combat.

Enchant creature Enchanted creature gets +0/+4. Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Disguise {2}{W} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) When this creature is turned face up, creatures you control gain hexproof until end of turn. Untap them.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Equipped creature gets +0/+3. Astral Projection — {1}{W}: Equipped creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.) Equip {1}

Equipped creature gets +0/+6. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)

Flash Enchant creature Enchanted creature gets +0/+10.

Flying Whenever a player attacks you, if that player has another opponent who isn't being attacked, prevent all combat damage that would be dealt to you this combat.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Defender, flying Shroud (This creature can't be the target of spells or abilities.)

During your turn, each creature assigns combat damage equal to its toughness rather than its power. Whenever Baldin attacks, up to one hundred target creatures each get +0/+X until end of turn, where X is the number of cards in your hand.

Equipped creature gets +1/+1. Whenever equipped creature attacks, venture into the dungeon. (Enter the first room or advance to the next room.) Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Flying When this creature enters, you take the initiative.

{T}: Add one mana of any color in your commander's color identity.

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

{T}: Add {C}{C}.

Counter target creature or planeswalker spell. Venture into the dungeon. (Enter the first room or advance to the next room.)

Counter target spell.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Destroy target artifact or enchantment.

This spell can't be countered. Counter target noncreature spell.

Destroy all creatures with power greater than target creature's power.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

You may choose not to untap this artifact during your untap step. Whenever this artifact becomes untapped, venture into the dungeon. {3}{W}, {T}: For as long as this artifact remains tapped, another target permanent loses all abilities and can't attack or block.

Counter target noncreature spell.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Double strike Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When this creature enters, for each opponent, put up to one target nonland permanent that player controls into its owner's library third from the top.

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

Exile target creature. Its controller gains life equal to its power.

Each creature you control assigns combat damage equal to its toughness rather than its power. Creatures you control can attack as though they didn't have defender. {2}{W}{U}: Untap target creature.